feat: DorkNet.Quest, a sideload patcher for the 2023 Quest client

Patches the Quest build of Rec Room 2023.03.21 (20230317 / 2128210, the
same appVersion as the PC client) to connect to a DorkNet server, using
one native hook library loaded via DT_NEEDED on libmain.so.

- host rewrite onto <svc>.<ServerHost> or a {service}-dev.example.com template
- Photon app ids and region injection (PhotonRegion must match PC)
- TLS / pinning / image-signature bypass, integrity callbacks neutralised
- no-Meta-account build; the server treats platform id 0/1/blank as a
  placeholder and keys those accounts by device id
- build.ps1 -Obb packages a DorkNet-<ver>.xapk with one-command
  installers for Windows and macOS/Linux; app is named via AppName
- README, docs/quest.md and NOTICE updated; credits RecFlare and
  And64InlineHook (MIT)

Tested on a Quest 2: all hooks arm, requests reach the dev server.

docs/deploy.md

@@ -400,6 +400,18 @@ means losing post-cutover writes unless you migrate them back.
 
 ---
 
+## Meta Quest client
+
+DorkNet also serves a sideload-patched Rec Room 2023.03.21 **Quest** client
+(versionCode 2128210, appVersion `20230317` — the same version the PC client
+reports, so Quest and PC players share rooms). The same DNS/TLS/Photon/image-
+signing setup here serves it; the only Quest-specific server behaviour is the
+placeholder-platform-id handling in `PlayerService`. See [`quest.md`](quest.md)
+for the operator view and [`../DorkNet.Quest/README.md`](../DorkNet.Quest/README.md)
+for building and installing the patched APK.
+
+---
+
 ## Photon Cloud
 
 Use your own Photon AppIds. Rec Room's original Photon AppIds reject